Williams v. Moulton Niguel Water Dist.

*1200Plaintiff homeowners allege the copper piping in their homes was damaged by a chemical the defendant water districts added to tap water. Adding the chemical was authorized by regulation, however, and it is undisputed that the water districts complied with all statutory and regulatory *1201standards. After a bifurcated bench trial on certain legal issues, the trial court entered judgment for the water districts, finding plaintiffs' causes of action for nuisance and inverse condemnation were preempted by federal and state laws, and *358otherwise insufficient on the merits. The plaintiff homeowners…